C# C# Basics (Retired) Prepare and Plan Program Structure

i dont understand what was explained in this video

in this video c# classes and static voids were explained i dont understand it can some one please help me understand?

3 Answers

Damien Watson
Damien Watson
27,404 Points

Hi Marcello, Is there anything in particular that didn't make sense, or just everything?

The code displayed in the video looks like this (I just like to have my bracket on the same line as the definition - both are valid):

Program.cs
class Program {
  static void Main() {

  }
  static void Other() {

  }
}

The breakdown of this is:

yourClassName.cs
class yourClassName {
  accessibleLevel returnType runThisMethodFirst() {

  }
  accessibleLevel returnType anotherMethod() {

  }
}

'accessibleLevel' - He will explain the 'static' I'm sure, but the basic explanation is that this makes the method accessible from outside the class. It's a bit more involved but thats the basic of it.

'void' means nothing is returned. Other valid types include strings, integers etc.

An example might look like this:

Program.cs
class Program {
  static void Main(string name) {
    string hello = "Hello " + name;
  }
  static string HelloThere(name) {
    return "Hello there " + name;
  }
}

I hope this has helped, I'm a bit of a c# noob.

Seth Reece
Seth Reece
32,864 Points

Hi Marcelo,

You will gain a better understanding as you progress through the course. Classes are objects. E.g. if you where making a game, you could have classes for a Monster, and a Player. The static keyword allows the method to be called without instantiating an instance of the class. The keyword void means that the method doesn't return anything.

Ben Morse
Ben Morse
6,068 Points

A class is a binding of methods and variables in a single unit. An object is an instance of a class.

What they are going over here is like the introduce of classes. Classes contains methods, which tells the program to do something when called upon, and it will have its own set of variables that contain some sort of value for that class.

Think of it as creating a class for Cats. It methods are its actions(sleep, eat, annoyMaster) and its variables are what visual details(fuzz, big) the represents a cat.